About create_share_from_snapshot_support

[Mitsuhiko]

Hi ,Now I use Manila and try to create manila share with create_share_from_snapshot_support option.

When ShareType create_share_from_snapshot_support is set to True and
an attempt is made to create a share from a snapshot with the following command,
an error occurred and the creation failed.

Can you tell me why manila create command is failed ?

$ manila create --snapshot-id 7b373020-e372-47b7-9781-ef07221f7b1a --share-type netapp --share-network ${TEST_PROJECT}_SHARE_NET --name ${TEST_PROJECT}_nfs_by_snapshot NFS 15
ERROR: A new share may not be created from snapshot '7b373020-e372-47b7-9781-ef07221f7b1a', because the snapshot's parent share does not have that capability.

Regards,

[balaramesh]

Hi Mitsuhiko

Are you using the NetApp Manila driver with driver_handles_share_servers=True? The command you are using to create a Manila share from a snapshot has the share-type and share-network specified, which would not be needed if working with driver_handles_share_servers=False

It looks like the create_share_from_snapshot_support extra spec was set on the Manila share type after the snapshot was created. I would recommend creating a new Manila share type with the following extra specs set:

1. snapshot_support=True

2. create_share_from_snapshot_support=True

You should then go ahead and create a Manila share, a snapshot for the share and then attempt to create a share from the snapshot.

[Mitsuhiko]

Hi balaramesh,

Thanks for the reply.I will try your advice later.

Before getting your advice ,I tried creating to excute the following command again,and it was created without error.

This time, Icreated a snapshot of 100GB share and created a 100GB share from the snapshot.

Is there any reason that the result changes depending on the specified size?

$ manila create --snapshot-id aff8616d-e65c-4861-9faa-d8a7ed2be1c3 --share-type netapp --share-network ${TEST_PROJECT}_SHARE_NET --name ${TEST_PROJECT}_nfs_by_snapshot NFS 100

Regards,